From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Installation and operation instructions for an engine primer and pump system.
| Identifier | ExFiles\Box 77\1\ scan0083 | |
| Date | 23th August 1920 guessed | |
| TO ATTACH PRIMER To install Primer on engine intake manifold, drill 11-32 in. hole and tap 1-8 in. pipe thread. It is always desirable to locate the Primer as high up on the intake pipe as possible, or as near the engine valves as possible. Screw Primer securely into tapped hole; pipe to gasoline line any point back of carburetor. Fittings and pipe are furnished. All connections are of such design that no soldering is needed. In cutting gasoline line, cut out a piece of pipe about one inch long to admit the Primer T connection. The B. & L. Primer can be installed in a vertical or horizontal position on the intake manifold. The spray plug should be set in the manifold with the holes in a position to direct the vapor in the manifold towards the cylinders. SPECIAL INSTALLATION Some cars have no exposed intake pipe, the carburetor being bolted to the engine block directly. Others have intake pipes with water or hot air jackets. On such cars special means of attaching the Primer is required. It should be remembered that the Primer must always be located in the intake suction of the engine, otherwise it will be inoperative. TO ATTACH PRIMER PUMP Type A To install Primer Pump, first drill a full 5-8-inch diameter hole through the wood or metal dash at a convenient point to reach from the driver's seat, and on the same side of dash as carburetor if possible. To insert pump through hole in dash, it is necessary to take pump apart. To do this, the nut A should be unscrewed from the barrel of pump. When unscrewing nut A do not loosen packing nut E.{Mr Elliott - Chief Engineer} After loosening nut A, pull out plunger F with nuts A and E attached and insert body of pump through hole, taking care to screw lock nut D and washer C far enough back in body so that it will be possible to tighten up flange nut A securely upon body, and cause the shoulder of body B to make a tight seat inside of flange nut A securely against dash. No threading, soldering or flanging of tubing is necessary for these connections, as all are made up with Patent Compression Couplings. To make tubing connections, simply insert end of tubing through nut and sleeve and then tighten up nut fitting, which makes an absolutely tight joint. In tightening up the nuts in the compression couplings, set them up very firmly but do not use too much force as it is not necessary and might result in stripping the threads. After all connections are made, operate the pump several times and examine all connections for leaks. The end of the plunger rod of pump opens and closes outlet connection to manifold. The inlet and outlet fittings contain small ball check valves. Before installing it would be advisable to place end of pump in a cup of gasoline in such a way that both these fittings are submerged and operate the pump several times, so as to cut out any oil that may have accumulated and direct on the balls, as the oil has a tendency to make the balls stick. IMPORTANT: If at any time gasoline should leak out around plunger, or the plunger loses the suction, simply tighten up the packing around plunger stem by turning down packing nut a trifle. If after long service the packing becomes worn out, remove packing out and insert new packing. TO ATTACH PRIMER PUMP Type B To install Primer Pump, first drill and file double hole through the wood or metal dash at a convenient point to reach from the driver's seat, and on the same side of dash as carburetor if possible. Insert pump valve body through hole in dash. Fasten to dash with the three bolts furnished. It is not necessary to take this type of pump apart to install. Type pump operates the same as Type A.{Mr Adams} ELECTRICAL WIRING. THE B & L ELECTRIC PRIMER CAN ONLY BE INSTALLED ON CARS EQUIPPED WITH STORAGE BATTERIES. THE VOLTAGE OF THE PRIMER MUST BE THE SAME AS THE ELECTRICAL SYSTEM OF CAR. All B. & L. Primers have the voltage and type marked on the side of heating unit. Drill a 7-8-inch hole through dash or cowl near pump for electric switch. Connect wire from switch to battery wire on dash or some other convenient place in the electric wiring. Connect wire from switch to Primer. TWO-WIRE SYSTEM On cars where the electrical system is not grounded, we can furnish a special Primer with two terminals. TO TEST PRIMER Disconnect coupling at heating unit and work pump. If the pump is working properly, gasoline will be forced out of tube. Turn on electric switch, the outside of the heating unit should become warm in about thirty seconds. A six volt Primer will draw about eighteen amperes at first and then drop to seven amperes. A twelve volt Primer will draw about half the above amperage. DIRECTIONS FOR OPERATION IMPORTANT: If properly installed in accordance with the foregoing instructions and operated according to the following directions, the B. & L. Electric Primer will positively start your car on the first turn-over, no matter how cold the weather. Failure to do so implies an error in either installation or operation. TO START MOTOR Pull Electric Switch—Heating coil will heat in 15 to 45 seconds, depending on weather conditions, strength of battery, etc. Before attempting to start the motor on the Primer, be sure throttle on steering wheel is nearly closed. The best throttle position for quickest starting should be found by trial. TO PRIME ENGINE TO PRIME ENGINE, open the Primer by turning handle of plunger to the left until the thread at bottom of plunger disengages (two or three turns). One or two quick strokes of the plunger are all that are usually required to draw gasoline through inlet tube into pump barrel. You can tell by feeling the resistance of the gasoline when it enters pump cylinder. After drawing a charge of gasoline into the pump, give a quick downward stroke on handle of pump, thereby forcing the gasoline from pump barrel through the outlet connection to the heating unit into intake manifold in the form of a hot explosive vapor. After priming engine, turn pump handle to the right and screw it up tight, thereby closing outlet connection. Keep plunger screwed down tight when not in use. | ||